90121400

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 217954800

約数和(自身を除く): 127833400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 83, 89, 100, 122, 166, 178, 200, 244, 305, 332, 356, 415, 445, 488, 610, 664, 712, 830, 890, 1220, 1525, 1660, 1780, 2075, 2225, 2440, 3050, 3320, 3560, 4150, 4450, 5063, 5429, 6100, 7387, 8300, 8900, 10126, 10858, 12200, 14774, 16600, 17800, 20252, 21716, 25315, 27145, 29548, 36935, 40504, 43432, 50630, 54290, 59096, 73870, 101260, 108580, 126575, 135725, 147740, 184675, 202520, 217160, 253150, 271450, 295480, 369350, 450607, 506300, 542900, 738700, 901214, 1012600, 1085800, 1477400, 1802428, 2253035, 3604856, 4506070, 9012140, 11265175, 18024280, 22530350, 45060700, 90121400]

約数ペア:

[(1, 90121400), (2, 45060700), (4, 22530350), (5, 18024280), (8, 11265175), (10, 9012140), (20, 4506070), (25, 3604856), (40, 2253035), (50, 1802428), (61, 1477400), (83, 1085800), (89, 1012600), (100, 901214), (122, 738700), (166, 542900), (178, 506300), (200, 450607), (244, 369350), (305, 295480), (332, 271450), (356, 253150), (415, 217160), (445, 202520), (488, 184675), (610, 147740), (664, 135725), (712, 126575), (830, 108580), (890, 101260), (1220, 73870), (1525, 59096), (1660, 54290), (1780, 50630), (2075, 43432), (2225, 40504), (2440, 36935), (3050, 29548), (3320, 27145), (3560, 25315), (4150, 21716), (4450, 20252), (5063, 17800), (5429, 16600), (6100, 14774), (7387, 12200), (8300, 10858), (8900, 10126)]