419418920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 1031184000

約数和(自身を除く): 611765080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 83, 95, 109, 122, 152, 166, 190, 218, 244, 305, 332, 380, 415, 436, 488, 545, 610, 664, 760, 830, 872, 1090, 1159, 1220, 1577, 1660, 2071, 2180, 2318, 2440, 3154, 3320, 4142, 4360, 4636, 5063, 5795, 6308, 6649, 7885, 8284, 9047, 9272, 10126, 10355, 11590, 12616, 13298, 15770, 16568, 18094, 20252, 20710, 23180, 25315, 26596, 31540, 33245, 36188, 40504, 41420, 45235, 46360, 50630, 53192, 63080, 66490, 72376, 82840, 90470, 96197, 101260, 126331, 132980, 171893, 180940, 192394, 202520, 252662, 265960, 343786, 361880, 384788, 480985, 505324, 551867, 631655, 687572, 769576, 859465, 961970, 1010648, 1103734, 1263310, 1375144, 1718930, 1923940, 2207468, 2526620, 2759335, 3437860, 3847880, 4414936, 5053240, 5518670, 6875720, 10485473, 11037340, 20970946, 22074680, 41941892, 52427365, 83883784, 104854730, 209709460, 419418920]

約数ペア:

[(1, 419418920), (2, 209709460), (4, 104854730), (5, 83883784), (8, 52427365), (10, 41941892), (19, 22074680), (20, 20970946), (38, 11037340), (40, 10485473), (61, 6875720), (76, 5518670), (83, 5053240), (95, 4414936), (109, 3847880), (122, 3437860), (152, 2759335), (166, 2526620), (190, 2207468), (218, 1923940), (244, 1718930), (305, 1375144), (332, 1263310), (380, 1103734), (415, 1010648), (436, 961970), (488, 859465), (545, 769576), (610, 687572), (664, 631655), (760, 551867), (830, 505324), (872, 480985), (1090, 384788), (1159, 361880), (1220, 343786), (1577, 265960), (1660, 252662), (2071, 202520), (2180, 192394), (2318, 180940), (2440, 171893), (3154, 132980), (3320, 126331), (4142, 101260), (4360, 96197), (4636, 90470), (5063, 82840), (5795, 72376), (6308, 66490), (6649, 63080), (7885, 53192), (8284, 50630), (9047, 46360), (9272, 45235), (10126, 41420), (10355, 40504), (11590, 36188), (12616, 33245), (13298, 31540), (15770, 26596), (16568, 25315), (18094, 23180), (20252, 20710)]