205218900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 216

約数和(自身を含む): 703496640

約数和(自身を除く): 498277740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 27, 30, 34, 36, 45, 50, 51, 54, 60, 68, 75, 85, 90, 100, 102, 108, 135, 150, 153, 170, 180, 204, 225, 255, 263, 270, 289, 300, 306, 340, 425, 450, 459, 510, 526, 540, 578, 612, 675, 765, 789, 850, 867, 900, 918, 1020, 1052, 1156, 1275, 1315, 1350, 1445, 1530, 1578, 1700, 1734, 1836, 2295, 2367, 2550, 2601, 2630, 2700, 2890, 3060, 3156, 3468, 3825, 3945, 4335, 4471, 4590, 4734, 5100, 5202, 5260, 5780, 6575, 7101, 7225, 7650, 7803, 7890, 8670, 8942, 9180, 9468, 10404, 11475, 11835, 13005, 13150, 13413, 14202, 14450, 15300, 15606, 15780, 17340, 17884, 19725, 21675, 22355, 22950, 23670, 26010, 26300, 26826, 28404, 28900, 31212, 35505, 39015, 39450, 40239, 43350, 44710, 45900, 47340, 52020, 53652, 59175, 65025, 67065, 71010, 76007, 78030, 78900, 80478, 86700, 89420, 111775, 118350, 120717, 130050, 134130, 142020, 152014, 156060, 160956, 177525, 195075, 201195, 223550, 228021, 236700, 241434, 260100, 268260, 304028, 335325, 355050, 380035, 390150, 402390, 447100, 456042, 482868, 603585, 670650, 684063, 710100, 760070, 780300, 804780, 912084, 1005975, 1140105, 1207170, 1341300, 1368126, 1520140, 1900175, 2011950, 2052189, 2280210, 2414340, 2736252, 3017925, 3420315, 3800350, 4023900, 4104378, 4560420, 5700525, 6035850, 6840630, 7600700, 8208756, 10260945, 11401050, 12071700, 13681260, 17101575, 20521890, 22802100, 34203150, 41043780, 51304725, 68406300, 102609450, 205218900]

約数ペア:

[(1, 205218900), (2, 102609450), (3, 68406300), (4, 51304725), (5, 41043780), (6, 34203150), (9, 22802100), (10, 20521890), (12, 17101575), (15, 13681260), (17, 12071700), (18, 11401050), (20, 10260945), (25, 8208756), (27, 7600700), (30, 6840630), (34, 6035850), (36, 5700525), (45, 4560420), (50, 4104378), (51, 4023900), (54, 3800350), (60, 3420315), (68, 3017925), (75, 2736252), (85, 2414340), (90, 2280210), (100, 2052189), (102, 2011950), (108, 1900175), (135, 1520140), (150, 1368126), (153, 1341300), (170, 1207170), (180, 1140105), (204, 1005975), (225, 912084), (255, 804780), (263, 780300), (270, 760070), (289, 710100), (300, 684063), (306, 670650), (340, 603585), (425, 482868), (450, 456042), (459, 447100), (510, 402390), (526, 390150), (540, 380035), (578, 355050), (612, 335325), (675, 304028), (765, 268260), (789, 260100), (850, 241434), (867, 236700), (900, 228021), (918, 223550), (1020, 201195), (1052, 195075), (1156, 177525), (1275, 160956), (1315, 156060), (1350, 152014), (1445, 142020), (1530, 134130), (1578, 130050), (1700, 120717), (1734, 118350), (1836, 111775), (2295, 89420), (2367, 86700), (2550, 80478), (2601, 78900), (2630, 78030), (2700, 76007), (2890, 71010), (3060, 67065), (3156, 65025), (3468, 59175), (3825, 53652), (3945, 52020), (4335, 47340), (4471, 45900), (4590, 44710), (4734, 43350), (5100, 40239), (5202, 39450), (5260, 39015), (5780, 35505), (6575, 31212), (7101, 28900), (7225, 28404), (7650, 26826), (7803, 26300), (7890, 26010), (8670, 23670), (8942, 22950), (9180, 22355), (9468, 21675), (10404, 19725), (11475, 17884), (11835, 17340), (13005, 15780), (13150, 15606), (13413, 15300), (14202, 14450)]