27921080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 74649600

約数和(自身を除く): 46728520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 31, 40, 44, 46, 55, 62, 88, 89, 92, 110, 115, 124, 155, 178, 184, 220, 230, 248, 253, 310, 341, 356, 440, 445, 460, 506, 620, 682, 712, 713, 890, 920, 979, 1012, 1240, 1265, 1364, 1426, 1705, 1780, 1958, 2024, 2047, 2530, 2728, 2759, 2852, 3410, 3560, 3565, 3916, 4094, 4895, 5060, 5518, 5704, 6820, 7130, 7832, 7843, 8188, 9790, 10120, 10235, 11036, 13640, 13795, 14260, 15686, 16376, 19580, 20470, 22072, 22517, 27590, 28520, 30349, 31372, 39160, 39215, 40940, 45034, 55180, 60698, 62744, 63457, 78430, 81880, 90068, 110360, 112585, 121396, 126914, 151745, 156860, 180136, 225170, 242792, 253828, 303490, 313720, 317285, 450340, 507656, 606980, 634570, 698027, 900680, 1213960, 1269140, 1396054, 2538280, 2792108, 3490135, 5584216, 6980270, 13960540, 27921080]

約数ペア:

[(1, 27921080), (2, 13960540), (4, 6980270), (5, 5584216), (8, 3490135), (10, 2792108), (11, 2538280), (20, 1396054), (22, 1269140), (23, 1213960), (31, 900680), (40, 698027), (44, 634570), (46, 606980), (55, 507656), (62, 450340), (88, 317285), (89, 313720), (92, 303490), (110, 253828), (115, 242792), (124, 225170), (155, 180136), (178, 156860), (184, 151745), (220, 126914), (230, 121396), (248, 112585), (253, 110360), (310, 90068), (341, 81880), (356, 78430), (440, 63457), (445, 62744), (460, 60698), (506, 55180), (620, 45034), (682, 40940), (712, 39215), (713, 39160), (890, 31372), (920, 30349), (979, 28520), (1012, 27590), (1240, 22517), (1265, 22072), (1364, 20470), (1426, 19580), (1705, 16376), (1780, 15686), (1958, 14260), (2024, 13795), (2047, 13640), (2530, 11036), (2728, 10235), (2759, 10120), (2852, 9790), (3410, 8188), (3560, 7843), (3565, 7832), (3916, 7130), (4094, 6820), (4895, 5704), (5060, 5518)]