19934040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1249}}^1$

素因数の和:1289

約数の個数: 128

約数和(自身を含む): 72000000

約数和(自身を除く): 52065960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1249, 1330, 1596, 1995, 2280, 2498, 2660, 3192, 3747, 3990, 4996, 5320, 6245, 7494, 7980, 8743, 9992, 12490, 14988, 15960, 17486, 18735, 23731, 24980, 26229, 29976, 34972, 37470, 43715, 47462, 49960, 52458, 69944, 71193, 74940, 87430, 94924, 104916, 118655, 131145, 142386, 149880, 166117, 174860, 189848, 209832, 237310, 262290, 284772, 332234, 349720, 355965, 474620, 498351, 524580, 569544, 664468, 711930, 830585, 949240, 996702, 1049160, 1328936, 1423860, 1661170, 1993404, 2491755, 2847720, 3322340, 3986808, 4983510, 6644680, 9967020, 19934040]

約数ペア:

[(1, 19934040), (2, 9967020), (3, 6644680), (4, 4983510), (5, 3986808), (6, 3322340), (7, 2847720), (8, 2491755), (10, 1993404), (12, 1661170), (14, 1423860), (15, 1328936), (19, 1049160), (20, 996702), (21, 949240), (24, 830585), (28, 711930), (30, 664468), (35, 569544), (38, 524580), (40, 498351), (42, 474620), (56, 355965), (57, 349720), (60, 332234), (70, 284772), (76, 262290), (84, 237310), (95, 209832), (105, 189848), (114, 174860), (120, 166117), (133, 149880), (140, 142386), (152, 131145), (168, 118655), (190, 104916), (210, 94924), (228, 87430), (266, 74940), (280, 71193), (285, 69944), (380, 52458), (399, 49960), (420, 47462), (456, 43715), (532, 37470), (570, 34972), (665, 29976), (760, 26229), (798, 24980), (840, 23731), (1064, 18735), (1140, 17486), (1249, 15960), (1330, 14988), (1596, 12490), (1995, 9992), (2280, 8743), (2498, 7980), (2660, 7494), (3192, 6245), (3747, 5320), (3990, 4996)]