201990420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{683}}^1$

素因数の和:782

約数の個数: 144

約数和(自身を含む): 645345792

約数和(自身を除く): 443355372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 53, 60, 62, 90, 93, 106, 124, 155, 159, 180, 186, 212, 265, 279, 310, 318, 372, 465, 477, 530, 558, 620, 636, 683, 795, 930, 954, 1060, 1116, 1366, 1395, 1590, 1643, 1860, 1908, 2049, 2385, 2732, 2790, 3180, 3286, 3415, 4098, 4770, 4929, 5580, 6147, 6572, 6830, 8196, 8215, 9540, 9858, 10245, 12294, 13660, 14787, 16430, 19716, 20490, 21173, 24588, 24645, 29574, 30735, 32860, 36199, 40980, 42346, 49290, 59148, 61470, 63519, 72398, 73935, 84692, 98580, 105865, 108597, 122940, 127038, 144796, 147870, 180995, 190557, 211730, 217194, 254076, 295740, 317595, 325791, 361990, 381114, 423460, 434388, 542985, 635190, 651582, 723980, 762228, 952785, 1085970, 1122169, 1270380, 1303164, 1628955, 1905570, 2171940, 2244338, 3257910, 3366507, 3811140, 4488676, 5610845, 6515820, 6733014, 10099521, 11221690, 13466028, 16832535, 20199042, 22443380, 33665070, 40398084, 50497605, 67330140, 100995210, 201990420]

約数ペア:

[(1, 201990420), (2, 100995210), (3, 67330140), (4, 50497605), (5, 40398084), (6, 33665070), (9, 22443380), (10, 20199042), (12, 16832535), (15, 13466028), (18, 11221690), (20, 10099521), (30, 6733014), (31, 6515820), (36, 5610845), (45, 4488676), (53, 3811140), (60, 3366507), (62, 3257910), (90, 2244338), (93, 2171940), (106, 1905570), (124, 1628955), (155, 1303164), (159, 1270380), (180, 1122169), (186, 1085970), (212, 952785), (265, 762228), (279, 723980), (310, 651582), (318, 635190), (372, 542985), (465, 434388), (477, 423460), (530, 381114), (558, 361990), (620, 325791), (636, 317595), (683, 295740), (795, 254076), (930, 217194), (954, 211730), (1060, 190557), (1116, 180995), (1366, 147870), (1395, 144796), (1590, 127038), (1643, 122940), (1860, 108597), (1908, 105865), (2049, 98580), (2385, 84692), (2732, 73935), (2790, 72398), (3180, 63519), (3286, 61470), (3415, 59148), (4098, 49290), (4770, 42346), (4929, 40980), (5580, 36199), (6147, 32860), (6572, 30735), (6830, 29574), (8196, 24645), (8215, 24588), (9540, 21173), (9858, 20490), (10245, 19716), (12294, 16430), (13660, 14787)]