161919900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:613

約数の個数: 216

約数和(自身を含む): 566682480

約数和(自身を除く): 404762580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 25, 30, 34, 36, 38, 45, 50, 51, 57, 60, 68, 75, 76, 85, 90, 95, 100, 102, 114, 150, 153, 170, 171, 180, 190, 204, 225, 228, 255, 285, 300, 306, 323, 340, 342, 380, 425, 450, 475, 510, 557, 570, 612, 646, 684, 765, 850, 855, 900, 950, 969, 1020, 1114, 1140, 1275, 1292, 1425, 1530, 1615, 1671, 1700, 1710, 1900, 1938, 2228, 2550, 2785, 2850, 2907, 3060, 3230, 3342, 3420, 3825, 3876, 4275, 4845, 5013, 5100, 5570, 5700, 5814, 6460, 6684, 7650, 8075, 8355, 8550, 9469, 9690, 10026, 10583, 11140, 11628, 13925, 14535, 15300, 16150, 16710, 17100, 18938, 19380, 20052, 21166, 24225, 25065, 27850, 28407, 29070, 31749, 32300, 33420, 37876, 41775, 42332, 47345, 48450, 50130, 52915, 55700, 56814, 58140, 63498, 72675, 83550, 85221, 94690, 95247, 96900, 100260, 105830, 113628, 125325, 126996, 142035, 145350, 158745, 167100, 170442, 179911, 189380, 190494, 211660, 236725, 250650, 264575, 284070, 290700, 317490, 340884, 359822, 380988, 426105, 473450, 476235, 501300, 529150, 539733, 568140, 634980, 710175, 719644, 793725, 852210, 899555, 946900, 952470, 1058300, 1079466, 1420350, 1587450, 1619199, 1704420, 1799110, 1904940, 2130525, 2158932, 2381175, 2698665, 2840700, 3174900, 3238398, 3598220, 4261050, 4497775, 4762350, 5397330, 6476796, 8095995, 8522100, 8995550, 9524700, 10794660, 13493325, 16191990, 17991100, 26986650, 32383980, 40479975, 53973300, 80959950, 161919900]

約数ペア:

[(1, 161919900), (2, 80959950), (3, 53973300), (4, 40479975), (5, 32383980), (6, 26986650), (9, 17991100), (10, 16191990), (12, 13493325), (15, 10794660), (17, 9524700), (18, 8995550), (19, 8522100), (20, 8095995), (25, 6476796), (30, 5397330), (34, 4762350), (36, 4497775), (38, 4261050), (45, 3598220), (50, 3238398), (51, 3174900), (57, 2840700), (60, 2698665), (68, 2381175), (75, 2158932), (76, 2130525), (85, 1904940), (90, 1799110), (95, 1704420), (100, 1619199), (102, 1587450), (114, 1420350), (150, 1079466), (153, 1058300), (170, 952470), (171, 946900), (180, 899555), (190, 852210), (204, 793725), (225, 719644), (228, 710175), (255, 634980), (285, 568140), (300, 539733), (306, 529150), (323, 501300), (340, 476235), (342, 473450), (380, 426105), (425, 380988), (450, 359822), (475, 340884), (510, 317490), (557, 290700), (570, 284070), (612, 264575), (646, 250650), (684, 236725), (765, 211660), (850, 190494), (855, 189380), (900, 179911), (950, 170442), (969, 167100), (1020, 158745), (1114, 145350), (1140, 142035), (1275, 126996), (1292, 125325), (1425, 113628), (1530, 105830), (1615, 100260), (1671, 96900), (1700, 95247), (1710, 94690), (1900, 85221), (1938, 83550), (2228, 72675), (2550, 63498), (2785, 58140), (2850, 56814), (2907, 55700), (3060, 52915), (3230, 50130), (3342, 48450), (3420, 47345), (3825, 42332), (3876, 41775), (4275, 37876), (4845, 33420), (5013, 32300), (5100, 31749), (5570, 29070), (5700, 28407), (5814, 27850), (6460, 25065), (6684, 24225), (7650, 21166), (8075, 20052), (8355, 19380), (8550, 18938), (9469, 17100), (9690, 16710), (10026, 16150), (10583, 15300), (11140, 14535), (11628, 13925)]