16421320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:119

約数の個数: 128

約数和(自身を含む): 43545600

約数和(自身を除く): 27124280

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 31, 34, 38, 40, 41, 62, 68, 76, 82, 85, 95, 124, 136, 152, 155, 164, 170, 190, 205, 248, 310, 323, 328, 340, 380, 410, 527, 589, 620, 646, 680, 697, 760, 779, 820, 1054, 1178, 1240, 1271, 1292, 1394, 1558, 1615, 1640, 2108, 2356, 2542, 2584, 2635, 2788, 2945, 3116, 3230, 3485, 3895, 4216, 4712, 5084, 5270, 5576, 5890, 6232, 6355, 6460, 6970, 7790, 10013, 10168, 10540, 11780, 12710, 12920, 13243, 13940, 15580, 20026, 21080, 21607, 23560, 24149, 25420, 26486, 27880, 31160, 40052, 43214, 48298, 50065, 50840, 52972, 66215, 80104, 86428, 96596, 100130, 105944, 108035, 120745, 132430, 172856, 193192, 200260, 216070, 241490, 264860, 400520, 410533, 432140, 482980, 529720, 821066, 864280, 965960, 1642132, 2052665, 3284264, 4105330, 8210660, 16421320]

約数ペア:

[(1, 16421320), (2, 8210660), (4, 4105330), (5, 3284264), (8, 2052665), (10, 1642132), (17, 965960), (19, 864280), (20, 821066), (31, 529720), (34, 482980), (38, 432140), (40, 410533), (41, 400520), (62, 264860), (68, 241490), (76, 216070), (82, 200260), (85, 193192), (95, 172856), (124, 132430), (136, 120745), (152, 108035), (155, 105944), (164, 100130), (170, 96596), (190, 86428), (205, 80104), (248, 66215), (310, 52972), (323, 50840), (328, 50065), (340, 48298), (380, 43214), (410, 40052), (527, 31160), (589, 27880), (620, 26486), (646, 25420), (680, 24149), (697, 23560), (760, 21607), (779, 21080), (820, 20026), (1054, 15580), (1178, 13940), (1240, 13243), (1271, 12920), (1292, 12710), (1394, 11780), (1558, 10540), (1615, 10168), (1640, 10013), (2108, 7790), (2356, 6970), (2542, 6460), (2584, 6355), (2635, 6232), (2788, 5890), (2945, 5576), (3116, 5270), (3230, 5084), (3485, 4712), (3895, 4216)]