19811970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:616

約数の個数: 96

約数和(自身を含む): 57013632

約数和(自身を除く): 37201662

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 23, 30, 34, 45, 46, 51, 69, 85, 90, 102, 115, 138, 153, 170, 207, 230, 255, 306, 345, 391, 414, 510, 563, 690, 765, 782, 1035, 1126, 1173, 1530, 1689, 1955, 2070, 2346, 2815, 3378, 3519, 3910, 5067, 5630, 5865, 7038, 8445, 9571, 10134, 11730, 12949, 16890, 17595, 19142, 25335, 25898, 28713, 35190, 38847, 47855, 50670, 57426, 64745, 77694, 86139, 95710, 116541, 129490, 143565, 172278, 194235, 220133, 233082, 287130, 388470, 430695, 440266, 582705, 660399, 861390, 1100665, 1165410, 1320798, 1981197, 2201330, 3301995, 3962394, 6603990, 9905985, 19811970]

約数ペア:

[(1, 19811970), (2, 9905985), (3, 6603990), (5, 3962394), (6, 3301995), (9, 2201330), (10, 1981197), (15, 1320798), (17, 1165410), (18, 1100665), (23, 861390), (30, 660399), (34, 582705), (45, 440266), (46, 430695), (51, 388470), (69, 287130), (85, 233082), (90, 220133), (102, 194235), (115, 172278), (138, 143565), (153, 129490), (170, 116541), (207, 95710), (230, 86139), (255, 77694), (306, 64745), (345, 57426), (391, 50670), (414, 47855), (510, 38847), (563, 35190), (690, 28713), (765, 25898), (782, 25335), (1035, 19142), (1126, 17595), (1173, 16890), (1530, 12949), (1689, 11730), (1955, 10134), (2070, 9571), (2346, 8445), (2815, 7038), (3378, 5865), (3519, 5630), (3910, 5067)]